CN212407681U - Multipurpose pressure-cutting plug valve - Google Patents
Multipurpose pressure-cutting plug valve Download PDFInfo
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- CN212407681U CN212407681U CN202020820877.6U CN202020820877U CN212407681U CN 212407681 U CN212407681 U CN 212407681U CN 202020820877 U CN202020820877 U CN 202020820877U CN 212407681 U CN212407681 U CN 212407681U
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- 238000007789 sealing Methods 0.000 claims description 95
- 238000009434 installation Methods 0.000 abstract description 6
- 238000005553 drilling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Taps Or Cocks (AREA)
Abstract
The utility model relates to a plug valve is cut to multipurpose, it includes body (1), check valve assembly and plug valve assembly, the check valve assembly is by sealed arrow (2), pressure spring (3) and seal receptacle (4) constitute, the plug valve assembly is including last ball seat (5), ball valve (6), lower ball seat (7) and rotatory round pin (8), install in body (1) sealed arrow (2), pressure spring (3) suit is outside in sealed arrow (2), install in body (1) in the top that seal receptacle (4) are located sealed arrow (2), install at this internally in the top that lower ball seat (7) are located seal receptacle (4), install at this internally in the top that ball valve (6) are located lower ball seat, it installs at this internally to go up the top that ball seat (5) are located the ball valve, install at rotatory round pin (8) in rotatory round pin. The manual-opening and closing plug valve is easy to install, small in installation length and low in use cost, has the functions of a plug valve which is manually opened and closed and a check valve which prevents well kick and blowout, and is more convenient to use.
Description
Technical Field
The utility model relates to an oil instrument, concretely relates to multipurpose pressure stop cock valve.
Background
The common plug valve is a manual control valve in a drill string circulating system, only has the function of a valve, and does not have the function of automatically preventing well kick and blowout. The common check valve has no function of manual switch, and only has the check function of automatically preventing well kick and blowout. When in use, the two valves need to be connected in series on the pipe column, so that the installation is troublesome, the installation length is large, and the use cost is high.
Disclosure of Invention
The utility model aims at providing a stop and press plug valve of multipurpose that has had both manual valve function, has the non return function that prevents the well kick blowout again.
The technical solution of the utility model is that: the plug valve assembly comprises an upper ball seat, a ball valve, a lower ball seat and a rotating pin, wherein the sealing arrow is axially and slidably mounted in the central hole of the body, the pressure spring is positioned in the central hole of the body and sleeved outside the lower half section of the sealing arrow, the lower end of the pressure spring is matched with the inner end surface of the body facing upwards, the upper end of the pressure spring is matched with the outer end surface of the sealing arrow facing downwards, the sealing seat is positioned above the sealing arrow, the outer wall of the sealing seat is in sealing fit with the inner wall of the body and mounted in the central hole of the body, the inner conical surface of the lower opening of the sealing seat is in sealing fit with the outer conical surface of the upper end of the sealing arrow, the lower ball seat is positioned above the sealing seat, and the outer wall of the sealing seat is mounted in the central hole of the body in sealing fit with the inner wall of the body, the ball valve is located the top of ball seat down and installs in this internally, goes up the top that the ball seat is located the ball valve, and the outer wall is installed this internally with body inner wall looks sealing fit, and rotatory round pin rotation sealing installation is in the rotatory round pin hole on the body lateral wall, and the draw-in groove on the tenon on the rotatory round pin and the ball valve cooperatees and drives the ball valve rotation.
The technical effects of the utility model are that: the manual-opening and closing plug valve is easy to install, small in installation length and low in use cost, has the functions of a plug valve which is manually opened and closed and a check valve which prevents well kick and blowout, and is more convenient to use. The plug valve solves the problem that most plug valves produced at home and abroad can not be opened and closed under pressure at present, can be opened and closed under pressure under different working pressures, has a non-return function, and realizes double protection functions in use. The upper pressure-cutting plug valve can be used as an upper pressure-cutting plug valve and can also be used as a lower pressure-cutting plug valve, the upper pressure-cutting plug valve is connected between the lower end of a water faucet and the upper end of a kelly bar, and the lower pressure-cutting plug valve is connected between the lower end of the kelly bar and the upper end of a drill bar or the upper end of a kelly bar protection joint. The plug valve can be switched on and off by rotating the operating key by 90 degrees according to the indication requirement by using a special spanner, and the switch is convenient and easy.
Drawings
Fig. 1 is a cross-sectional structure diagram of the embodiment of the present invention.
Detailed Description
As shown in figure 1, the plug valve assembly comprises a body 1, a check valve assembly and a plug valve assembly, wherein the upper end of the body 1 is provided with a pipe column connecting internal thread 11, the lower end of the body is provided with a pipe column connecting external thread 12, and a central hole 13 is axially arranged, the check valve assembly is composed of a sealing arrow 2, a pressure spring 3 and a sealing seat 4, the plug valve assembly comprises an upper ball seat 5, a ball valve 6, a lower ball seat 7 and a rotating pin 8, the sealing arrow 2 is axially and slidably arranged in the central hole 13 of the body 1, the pressure spring 3 is positioned in the central hole of the body 1 and sleeved outside the lower half section of the sealing arrow 2, the lower end of the pressure spring 3 is matched with the inner end surface of the body 1 facing upwards, the upper end of the pressure spring is matched with the outer end surface of the sealing arrow 2 facing downwards, the sealing seat 4 is positioned above the sealing arrow 2, lower ball seat 7 is located the top of seal receptacle 4, and the outer wall is installed in body 1 centre bore with 1 inner wall of body mutually sealed cooperation, and ball valve 6 is located the top of lower ball seat 7 and is installed in body 1, goes up the top that ball seat 5 is located ball valve 6, and the outer wall is installed in body 1 with 1 inner wall mutually sealed cooperation, and rotatory round pin 8 rotates in rotatory pinhole 14 of sealed installation on 1 lateral wall of body, and the draw-in groove 61 on the tenon 81 on the rotatory round pin 8 and the ball valve 6 cooperatees and drives ball valve 6 rotatory.
The upper end part of the sealing arrow 2 is a sealing flat top 21 vertical to the axial direction of the sealing arrow 2, the outer side of the sealing flat top 21 is an outer conical surface hermetically matched with the sealing seat 4, the outer conical surface and the sealing arrow 2 below the sealing flat top 21 are axially provided with axial flow guide holes 22 with lower ends opening on the lower end surface of the sealing arrow 2, and the side wall of the sealing arrow 2 at the upper end position of the axial flow guide holes 22 is provided with a plurality of radial flow guide holes 23 enabling the axial flow guide holes 22 to be communicated with the outside of the sealing arrow 2.
An annular guide groove 15 is arranged on the inner wall of the body 1 at the corresponding position of each radial guide hole 23 on the sealing arrow 2, and an annular guide space is formed between the bottom of the annular guide groove 15 and the outer wall of the sealing arrow 2.
The outer walls of the sealing arrows 2 above and below the pressure spring 3 are respectively in sliding fit with the inner wall of the body 1 to play a guiding role.
Be equipped with on the first section outer wall of seal receptacle 4 with the internal thread matched with external screw thread on the body 1 inner wall, seal receptacle 4 passes through the screw thread and installs in body 1 centre bore, the second section outer wall of seal receptacle 4 and the sealed cooperation of body 1 inner wall mutually, be equipped with the seal ring groove on the second section outer wall of seal receptacle 4, seal ring inslot is installed and is sealed complex sealing washer 9 with body 1 mutually.
The plug valve assembly further comprises a wave-shaped spring 16, a lower split ring 17 and an upper split ring 18, a supporting ring 19 and a hole retainer ring 20, wherein the wave-shaped spring 16 is positioned outside the lower end of the lower ball seat 7 in the body 1, the lower end of the wave-shaped spring 16 is matched with the inner end surface of the body 1 facing to the upper part, the upper end of the wave-shaped spring is matched with the outer end surface of the lower ball seat 7 facing to the lower part, the lower split ring 17 is positioned outside the lower end of the upper ball seat 5 in the body 1 in a sleeved mode, the periphery of the lower split ring 17 is arranged in a lower split ring groove in a central hole of the body 1, the upper split ring 18 is positioned above the upper ball seat 5, the periphery of the lower split ring is arranged in an upper split ring groove in the inner wall of the body 1, the supporting ring 19 is positioned above the upper ball seat 5 and arranged in the upper split ring 18, the hole retainer ring 20 is positioned above the supporting ring 19 and arranged in a retainer.
The outer wall of the lower ball seat 7 is provided with a sealing ring groove, and a sealing ring 9 which is in sealing fit with the inner wall of the body 1 is arranged in the sealing ring groove.
Two sealing ring grooves are arranged on the outer wall of the upper ball seat 5, and a sealing ring 9 which is in sealing fit with the body 1 is respectively arranged in each sealing ring groove.
Two sealing ring grooves are arranged on the outer wall of the rotating pin 8 which is in rotating sealing fit with the body 1, and a sealing ring 9 which is in sealing fit with a rotating pin hole 14 is respectively arranged in each sealing ring groove.
The end surface of the rotation pin 8 facing the outside of the body 1 is provided with an internal hexagonal hole 82 which is fitted with an operating tool.
The working principle is as follows:
in the drilling process, the ball valve 6 of the plug valve assembly is opened, mud and drilling fluid enter the check valve assembly part through the plug valve assembly, and when a certain bit pressure is applied, the sealing arrow 2 is separated from the sealing seat 4, so that the mud and drilling fluid channel is normally opened, and normal drilling operation can be realized. When blowout and kick occur at the bottom of a well, the friction force between the ball seat and the ball is increased because the pressure from the bottom of the well acts on the ball seat, and the plug valve is difficult to open or close under the action of the pressure. The multipurpose pressure-cutting plug valve is from bottom pressure to act on a check valve assembly part firstly, a sealing arrow 2 and a sealing seat 4 of the check valve assembly play a sealing role, the check valve assembly cuts off the pressure from the bottom, the pressure does not act on a ball valve 6 of the plug valve assembly, the plug valve assembly above can be normally closed (the pressures of 35Mpa, 70Mpa and 105Mpa can be normally closed), the dual-pressure protection effect is realized, and the effect of closing the plug valve under pressure is realized.
Claims (10)
1. Multipurpose pressure-intercepting plug valve, it includes body (1), check valve assembly and plug valve assembly, the upper end of body (1) is equipped with tubular column connection internal thread (11), the lower extreme is equipped with tubular column connection external screw thread (12), the axial is equipped with centre bore (13), the check valve assembly comprises sealed arrow (2), pressure spring (3) and sealed seat (4), plug valve assembly is including last ball seat (5), ball valve (6), lower ball seat (7) and swivel pin (8), its characterized in that: the sealing arrow (2) is axially and slidably arranged in a center hole (13) of the body (1), the pressure spring (3) is positioned in the center hole of the body (1) and sleeved outside the lower half section of the sealing arrow (2), the lower end of the pressure spring (3) is matched with the inner end surface of the body (1) facing upwards, the upper end of the pressure spring is matched with the outer end surface of the sealing arrow (2) facing downwards, the sealing seat (4) is positioned above the sealing arrow (2), the outer wall of the pressure spring is matched and arranged in the center hole of the body (1) in a sealing way with the inner wall of the body (1), the inner conical surface of the lower opening of the sealing seat (4) is matched and sealed with the outer conical surface of the upper end of the sealing arrow (2), the lower ball seat (7) is positioned above the sealing seat (4), the outer wall of the pressure spring is matched and arranged in the center hole of the body (1) in a, go up ball seat (5) and be located the top of ball valve (6), the outer wall is installed in body (1) with body (1) inner wall mutually sealed cooperation, and in swivel pin (8) rotated swivel pin (8) and is installed swivel pin hole (14) on body (1) lateral wall sealed, and draw-in groove (61) on bayonet catch (81) on swivel pin (8) and ball valve (6) cooperate and drive ball valve (6) rotatory.
2. The multipurpose pressure-intercepting plug valve according to claim 1, characterized in that the upper end portion of the sealing arrow (2) is a closed flat top (21) perpendicular to the axial direction of the sealing arrow (2), the outer side of the closed flat top (21) is an outer conical surface hermetically matched with the sealing seat (4), the sealing arrow (2) below the outer conical surface and the closed flat top (21) is axially provided with an axial diversion hole (22) of which the lower end is opened at the lower end face of the sealing arrow (2), and the side wall of the sealing arrow (2) at the upper end position of the axial diversion hole (22) is provided with a plurality of radial diversion holes (23) which enable the axial diversion hole (22) to be communicated with the outer side of the sealing arrow (2).
3. The multipurpose interception plug valve according to claim 2, characterized in that the inner wall of the body (1) at the corresponding position of each radial diversion hole (23) on the sealing arrow (2) is provided with an annular diversion groove (15), and an annular diversion space is formed between the bottom of the annular diversion groove (15) and the outer wall of the sealing arrow (2).
4. The multipurpose pressure-intercepting plug valve according to claim 1, wherein the outer walls of the sealing arrows (2) above and below the pressure spring (3) are respectively in sliding fit with the inner wall of the body (1) to play a guiding role.
5. The multipurpose interception plug valve according to claim 1, characterized in that the outer wall of the upper half of the sealing seat (4) is provided with external threads matched with the internal threads on the inner wall of the body (1), the sealing seat (4) is installed in the central hole of the body (1) through threads, the outer wall of the lower half of the sealing seat (4) is in sealing fit with the inner wall of the body (1), the outer wall of the lower half of the sealing seat (4) is provided with a sealing ring groove, and a sealing ring (9) in sealing fit with the body (1) is installed in the sealing ring groove.
6. The multipurpose stop-cock valve according to claim 1, wherein the plug valve assembly further comprises a wave-shaped spring (16), a lower split ring (17), an upper split ring (18), a support ring (19) and a hole retainer ring (20), the wave-shaped spring (16) is positioned outside the lower end of the lower ball seat (7) in the body (1), the lower end of the wave-shaped spring (16) is fitted to the inner end surface of the body (1) facing upward, the upper end of the wave-shaped spring is fitted to the outer end surface of the lower ball seat (7) facing downward, the lower split ring (17) is positioned outside the lower end of the upper ball seat (5) in the body (1), the outer periphery of the lower split ring (17) is installed in the lower split ring groove provided in the central hole of the body (1), the upper split ring (18) is positioned above the upper ball seat (5), and the outer periphery is installed in the upper split ring groove provided on the, the supporting ring (19) is positioned above the upper ball seat (5) and is arranged in the upper split ring (18), the hole retainer ring (20) is positioned above the supporting ring (19) and is arranged in a retainer ring groove on the inner wall of the upper split ring (18), and the upper end surface of the upper ball seat (5) is matched with the lower end surfaces of the upper split ring (18) and the supporting ring (19).
7. The multipurpose shut-off plug valve according to claim 1, wherein the outer wall of the lower ball seat (7) is provided with a sealing ring groove, and a sealing ring (9) which is in sealing fit with the inner wall of the body (1) is arranged in the sealing ring groove.
8. The multipurpose shut-off plug valve according to claim 1, wherein the outer wall of the upper ball seat (5) is provided with two sealing ring grooves, and each sealing ring groove is internally provided with a sealing ring (9) which is in sealing fit with the body (1).
9. A multi-purpose stop cock according to claim 1, characterized in that the outer wall of the rotary pin (8) which is in rotary sealing engagement with the body (1) is provided with two sealing ring grooves, and each sealing ring groove is provided with a sealing ring (9) which is in sealing engagement with the rotary pin hole (14).
10. A multi-purpose stop-cock according to claim 1, characterised in that the end surface of the said rotation pin (8) facing the outside of the body (1) is provided with an internal hexagonal hole (82) for the cooperation of an operating tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020820877.6U CN212407681U (en) | 2020-05-18 | 2020-05-18 | Multipurpose pressure-cutting plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020820877.6U CN212407681U (en) | 2020-05-18 | 2020-05-18 | Multipurpose pressure-cutting plug valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212407681U true CN212407681U (en) | 2021-01-26 |
Family
ID=74376880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020820877.6U Active CN212407681U (en) | 2020-05-18 | 2020-05-18 | Multipurpose pressure-cutting plug valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212407681U (en) |
-
2020
- 2020-05-18 CN CN202020820877.6U patent/CN212407681U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Multipurpose shut-off cock valve Effective date of registration: 20230329 Granted publication date: 20210126 Pledgee: Longjiang Bank Co.,Ltd. Mudanjiang Ping'an Branch Pledgor: Mudanjiang Tongyong Petroleum Tool Co.,Ltd. Registration number: Y2023230000032 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20210126 Pledgee: Longjiang Bank Co.,Ltd. Mudanjiang Ping'an Branch Pledgor: Mudanjiang Tongyong Petroleum Tool Co.,Ltd. Registration number: Y2023230000032 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Multipurpose shut-off plug valve Granted publication date: 20210126 Pledgee: Longjiang Bank Co.,Ltd. Mudanjiang Ping'an Branch Pledgor: Mudanjiang Tongyong Petroleum Tool Co.,Ltd. Registration number: Y2024980017349 |